What to show if there is error in account for user

[toplisek]

I have the following problem:
if user would like to change account information and there is reported error for this field. Should I use function to rememeber field or in this case should be shown value from table MySQL? How it is correct solution if there is reported error?

[knowj]

if i understand your correctly i think thats what you want:

mysql_query($query) or die('custom message followed by'. mysql_error());

[toplisek]

I would like to be more clear. Error Message is error for the particular field like
e-mail is not valid. I have validation of fields

[knowj]

so user clicks submit if the email isn't right send an error message?

http://www.htmlcenter.com/tutorials/tutorials.cfm/149/PHP/

that link should be useful